npm package report

Is metacalc safe?

1 known vulnerability, worst severity CRITICAL.

// reach

0 direct dependencies

none carry a known advisory

    0 packages depend on it

    an advisory here reaches each of them

      Create a free accountfor every dependency path, dependent and what to upgrade
      // ai model usage

      Tracked for PyPI packages. HuggingFace models declare Python dependencies, so npm packages are not covered.

      cvss
      0.0
      critical

      severity out of 10

      epss
      0.00%
      medium

      chance of exploitation in 30 days, 84th percentile of all CVEs

      xyz score
      0.0
      medium

      CyberXYZ composite out of 10

      fig. 01 — GHSA-5gc4-cx9x-9c43, the advisory selected below

      // 1 advisories

      GHSA-5gc4-cx9x-9c43

      CRITICALCVE-2022-21122

      The package metacalc before 0.0.2 is vulnerable to Arbitrary Code Execution when it exposes JavaScript's Math class to the v8 context. As the Math class is exposed to user-land, it can be used to get access to JavaScript's Function constructor.

      // cvss v3.1 vector

      CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

      Attack vector
      Network
      Attack complexity
      High
      Privileges required
      None
      User interaction
      None
      Scope
      Changed
      Confidentiality
      High
      Integrity
      High
      Availability
      High

      Checked 2026-10-04 at 01:14 UTC. The most recent advisory here was published 2022-06-09. Updated continuously from NVD, GHSA, OSV and CNA feeds.

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